chore: bump version and changelog (v0.9.5.0)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

CHANGELOG.md

@@ -1,5 +1,13 @@
 # Changelog
 
+## [0.9.5.0] - 2026-03-21 — Auto-Scaled Adversarial Review
+
+### Changed
+
+- **Review thoroughness now scales automatically with diff size.** Small diffs (<50 lines) skip adversarial review entirely — no wasted time on typo fixes. Medium diffs (50–199 lines) get a cross-model adversarial challenge from Codex (or a Claude adversarial subagent if Codex isn't installed). Large diffs (200+ lines) get all four passes: Claude structured, Codex structured review with pass/fail gate, Claude adversarial subagent, and Codex adversarial challenge. No configuration needed — it just works.
+- **Claude now has an adversarial mode.** A fresh Claude subagent with no checklist bias reviews your code like an attacker — finding edge cases, race conditions, security holes, and silent data corruption that the structured review might miss. Findings are classified as FIXABLE (auto-fixed) or INVESTIGATE (your call).
+- **Review dashboard shows "Adversarial" instead of "Codex Review."** The dashboard row reflects the new multi-model reality — it tracks whichever adversarial passes actually ran, not just Codex.
+
 ## [0.9.4.1] - 2026-03-20
 
 ### Changed

VERSION

@@ -1 +1 @@
-0.9.4.1
+0.9.5.0